post from form in other site

[LoRdGd]

Hello.
I have a simple form in my second site, and i want to integrate this with my vB.

The end of the form is:

		mail('someone@something.biz','Zgłoszenie kandydata na Opiekuna',$wiadomosc,'From: '.$_POST['nick']." <".$_POST['email']." >"."\n".'CC: '.$_POST['email']);

		$f=fopen('KandydaciNaPodopiecznego.txt', 'a');
		fwrite($f, $wiadomosc . "\n\r\n\r");
		fclose($f);
		}
?>

</body>
</html>

This script sending an email with form data, and additionaly creating entry in KandydaciNaPodopiecznego.txt file.

What code should i add, to have in also in post in forum?